149 lines
4.0 KiB
GDScript
149 lines
4.0 KiB
GDScript
extends Interactable
|
|
class_name Unit
|
|
|
|
const TURN_SPEED: float = 10
|
|
const LOCOMOTION_CHANGE_SPEED: float = 8
|
|
|
|
var _move_speed: float = 3
|
|
|
|
var _max_wander_distance: float = 5
|
|
var _min_wander_interval: float = 0.25
|
|
var _max_wander_interval: float = 5
|
|
|
|
var _wandering_center: Vector3 = Vector3.ZERO
|
|
var _wandering_timer: float = 0
|
|
|
|
var _spawn_pos: Vector3
|
|
|
|
var _locomotion_value: float = 0
|
|
var _advance_anim_delta_accum: float = 0
|
|
|
|
var _showing_info: bool = false
|
|
|
|
@onready var nav_agent: NavigationAgent3D = $NavigationAgent3D
|
|
@onready var ui_origin: Node3D = $UiOrigin
|
|
@onready var animation_tree: AnimationTree = $AnimationTree
|
|
@onready var anim_advance_indicator: VisualInstance3D = $AnimAdvanceIndicator
|
|
@onready var visibility_notifier: VisibleOnScreenNotifier3D = (
|
|
$VisibleOnScreenNotifier3D
|
|
)
|
|
@onready var audio_player: SoundEffectsPlayer = (
|
|
$SoundEffectsPlayer
|
|
)
|
|
|
|
|
|
func _ready() -> void:
|
|
assert(nav_agent != null, "nav_agent missing!")
|
|
assert(animation_tree != null, "animation_tree missing!")
|
|
assert(visibility_notifier != null, "visibility_notifier missing!")
|
|
assert(ui_origin != null, "ui_origin missing!")
|
|
assert(anim_advance_indicator != null, "anim_advance_indicator missing!")
|
|
assert(audio_player != null, "audio_player missing!")
|
|
super._ready()
|
|
|
|
anim_advance_indicator.visible = false
|
|
if _spawn_pos != null and _spawn_pos != Vector3.ZERO:
|
|
global_position = _spawn_pos
|
|
_wandering_center = global_position
|
|
|
|
nav_agent.max_speed = _move_speed
|
|
nav_agent.velocity_computed.connect(_on_nav_agent_velocity_computed)
|
|
|
|
set_max_slides(2)
|
|
|
|
visibility_notifier.screen_entered.connect(
|
|
_on_visibility_notifier_screen_entered,
|
|
)
|
|
visibility_notifier.screen_exited.connect(
|
|
_on_visibility_notifier_screen_exited,
|
|
)
|
|
|
|
|
|
func _process(delta: float) -> void:
|
|
super._process(delta)
|
|
_handle_animation(delta)
|
|
_showing_info = UiManager.unit_info.unit == self
|
|
|
|
|
|
func _physics_process(_delta: float) -> void:
|
|
_handle_navigation()
|
|
|
|
|
|
func _click() -> void:
|
|
UiManager.unit_info.open(self)
|
|
|
|
|
|
func _handle_navigation() -> void:
|
|
if nav_agent.is_navigation_finished():
|
|
velocity = Vector3.ZERO
|
|
return
|
|
|
|
var next_pos := nav_agent.get_next_path_position()
|
|
|
|
var direction := global_position.direction_to(next_pos)
|
|
var new_velocity := direction * _move_speed
|
|
nav_agent.set_velocity(new_velocity)
|
|
|
|
|
|
func _handle_animation(delta: float) -> void:
|
|
if not visibility_notifier.is_on_screen():
|
|
return
|
|
|
|
if velocity.length() > 0.01:
|
|
var velocity_normalized := velocity.normalized()
|
|
var angle := atan2(-velocity_normalized.x, -velocity_normalized.z) + PI
|
|
global_rotation.y = rotate_toward(
|
|
global_rotation.y,
|
|
angle,
|
|
TURN_SPEED * delta,
|
|
)
|
|
# look_at(global_position + velocity, Vector3.UP, true)
|
|
|
|
_locomotion_value = move_toward(
|
|
_locomotion_value,
|
|
velocity.length() / _move_speed,
|
|
delta * LOCOMOTION_CHANGE_SPEED
|
|
)
|
|
animation_tree.set("parameters/locomotion/blend_position", _locomotion_value)
|
|
|
|
_advance_anim_delta_accum += delta
|
|
|
|
var advance_anim_step := maxi(
|
|
StaticNodesManager.main_camera.advance_anim_step,
|
|
SelectionManager.advance_anim_step
|
|
)
|
|
var frame := Engine.get_frames_drawn()
|
|
var advance := (frame + get_instance_id()) % advance_anim_step == 0
|
|
|
|
if advance:
|
|
animation_tree.advance(_advance_anim_delta_accum)
|
|
_advance_anim_delta_accum = 0
|
|
|
|
anim_advance_indicator.visible = advance and DebugManager.enabled
|
|
|
|
|
|
func _wander(delta: float) -> void:
|
|
_wandering_timer -= delta
|
|
if _wandering_timer <= 0:
|
|
var new_pos_offset := Vector3(
|
|
randf_range(-_max_wander_distance, _max_wander_distance),
|
|
0,
|
|
randf_range(-_max_wander_distance, _max_wander_distance),
|
|
)
|
|
var new_pos := _wandering_center + new_pos_offset
|
|
nav_agent.set_target_position(new_pos)
|
|
_wandering_timer = randf_range(-_min_wander_interval, _max_wander_interval)
|
|
|
|
|
|
func _on_nav_agent_velocity_computed(safe_velocity: Vector3) -> void:
|
|
velocity = safe_velocity
|
|
move_and_slide()
|
|
|
|
|
|
func _on_visibility_notifier_screen_entered() -> void:
|
|
SelectionManager.add_unit_to_visible(self)
|
|
|
|
|
|
func _on_visibility_notifier_screen_exited() -> void:
|
|
SelectionManager.remove_unit_from_visible(self)
|